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74503 Madola (1999 DN4)
Classification: Main-belt Asteroid          SPK-ID: 2074503
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1836510223836328 7.5593e-08  
a 3.013950928942282 2.3769e-08 au
q 2.460435759427932 2.2621e-07 au
i 17.17537999593846 9.64e-06 deg
node 356.9776038748563 1.7844e-05 deg
peri 201.1329224967978 2.7044e-05 deg
M 351.7163554320975 1.7539e-05 deg
tp 2459044.476599851537
(2020-Jul-13.97659985)
9.315e-05 TDB
period 1911.184843432039
5.23
2.2608e-05
6.19e-08
d
yr
n .1883648257452296 2.2282e-09 deg/d
Q 3.567466098456631 2.8134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      386  
   data-arc span      9547 days (26.14 yr)  
   first obs. used      1994-04-02  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55141  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:43:25  

Additional Information
 Earth MOID = 1.46758 au 
 Jupiter MOID = 1.43537 au 
 T_jup = 3.156 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.2   n/a MPO422175  
diameter diameter 4.481 km 0.179 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.085   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74503 Madola           Discovered 1999 Feb. 23 by D. Bergeron at Val-des-Bois.
Christian Marois (b. 1974), René Doyon (b. 1963) and David Lafrenière (b. 1978) developed instruments that allowed seeing an extrasolar planetary system. Doyon was director of the Mt. Mégantic Observatory; Marois and Lafrenière were postdoctoral fellows at the Herzberg Institute and the University of Toronto.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090409/MPCPages.arcLast Updated: 2009-04-10

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1938-Nov-24 01:19 00:02 Jupiter 1.71496075000421 1.71495814966227 1.71496335041351 4.38518263293818 4.271068104995 2429226.554554370 2.43952163987352 625.83173777079 56.0522628748918 79.1623984609647 1494526.93564865 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
1976-Mar-19 21:56 00:02 Jupiter 1.72203476784434 1.72203301319468 1.722036522494 3.84903522182884 3.71904907374572 2442857.413911933 1.59565812957239 142.153913480766 88.0020436654032 -80.6586865979369 1368578.99925124 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2022-Dec-15 12:39 < 00:01 Jupiter 1.44110709083047 1.44110634093832 1.44110784072341 4.27727602166079 4.13758066471399 2459929.027013294 0.486296231123866 98.8918163174245 29.5205845610459 77.7665495926922 1603123.90940551 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2069-Oct-16 10:21 00:02 Jupiter 1.51953680043758 1.51953481405572 1.51953878683835 4.39174411365906 4.26293013268529 2477035.931108837 2.06339298032109 303.725247304796 29.6702712998525 72.015052153896 1630747.23611554 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2107-Apr-24 07:11 00:06 Jupiter 1.99127860707111 1.99127415625671 1.99128318380086 2.63143058200845 2.46448668220837 2490738.799576707 5.78094656670278 28924.9568865831 96.195823109463 -89.3110265066218 1387153.15893336 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2116-Jun-13 03:08 00:04 Jupiter 1.94994345033614 1.94993845374762 1.9499484479986 4.41657955325088 4.31710652107024 2494076.630221556 4.24154149354049 2407.30948494079 60.9071723492909 84.2457754354343 1492673.32520249 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2153-Oct-24 22:43 00:04 Jupiter 1.56155827503953 1.56155473572466 1.56156181436593 4.04121287632587 3.9046842193145 2507724.446429932 4.48234417606915 295.521607168713 71.040776070929 -53.9043956408506 1221238.79149598 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
2200-Aug-22 21:38 00:05 Jupiter 1.44415857339309 1.44415725662028 1.44415989021482 4.29069660241235 4.15175201230996 2524827.401566273 5.25137084474743 495.197164720834 31.6629482074612 83.779060432235 1599855.38853321 T 15 CATAB v2.0f-lin.ifort 2020-Nov-12 21:43:26 2020-Nov-12 21:43
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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